Cisco IOS IPv6 Feature Mapping

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This table lists the IPv6 features supported in the 12.xT, 12.xM, 12.2SE, 12.2SG, 12.2SR, 12.2SX, 12.2SY, 15.xT, 15.xM, 15.xSG, 15S, 15.0SY, and 3.xSG Cisco IOS software release trains. It also identifies the earliest release for each software release train in which the feature became available. Unless noted otherwise, subsequent releases of that Cisco IOS software release train also support that feature.